Thomas Op de Coul  <br />Stability and change in Carthusian liturgy abd music,  in: Stephen J. Molvarec & Demetrio S. Yocum (eds.), Carthusian monasticism. History, life, world, texts, Berlin & Boston, 20256, 177-203 (= Monastic life and venerated spaces)<br />[Op de Coul 2026]